Composti deuterati

<p>Stability Hygroscopic<br>Applications Clencyclohexerol-d10 is a labelled analog of Clenbuterol, a β-agonist which can be used as a growth promoter in farm animals.<br>References Maistro, S., et al.: Lancet, 346, 180 (1995); Vanoosthuyze, K., et al.: J. Agric. Food Chem., 45, 3129 (1997); Fiori, M., et al.: Anal. Chim. Acta, 529, 207 (2005); Salquebre, G., et al.: J. Anal. Toxicol., 31, 114 (2007);<br></p>

<p>Applications 4-Phenanthrol-d9 has been used as a reactant for the preparation of stable isotope-labeled internal standards of PAH metabolites from urine of smokers and nonsmokers.<br>References Jacob, P. III, et. al.: Anal. Chem., 79, 587 (2007)<br></p>

<p>Applications Compound forms a complex with Mefenamic acid increasing its transdermal permeation properties<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Fang, L., et al.: J. Pharm. Sci., 93, 144 (2004), Gibellini, F., et al.: Biochem. J., 415, 135 (2008),<br></p>

<p>Applications Labelled Fumaric Acid (F500380). Occurs in many plants. Essential to vegetable and tissue respiration. Used as an antioxidant.<br>References Jelitto, T., et al.: Planta, 188, 238 (1992), Son, H., et al.: J. Agric. Food Chem., 56, 8007 ( 2008),<br></p>

<p>Applications Isotope labelled 4-Chlorobenzoic Acid is a benzoic acid analogue that showed antifungal activity against strains of Aspergillus flavus, Aspergillus fumigatus and Aspergillus terreus, causative agents of human aspergillosis, in in vitro bioassays. It is used as a preservative.<br>References Rep, M., et al.: J. Biol. Chem., 275, 8290 (2000), Jaeger, T., et al.: Biofactors, 27, 109 (2006), Kim, J., et al.: Fungal Biology, 114, 817 (2010),<br></p>

<p>Applications Carbetamide-D5 is the labelled analogue of Carbetamide (C178028). Carbetamide is used in the determination of pesticides.<br>References Jia, W., et al.: Journal of Chromatogr. A., 1395, 160-166 (2015)<br></p>

<p>Applications The precursor of the ubiquitous natural compound malondialdehyde.<br>References Basu, A.K., et al.: J. of Labelled Compounds &amp; Radiopharmaceuticals, XX11, 11, 1175 (1985)<br></p>

<p>Applications A labelled metabolite of Theophylline.<br>References ottrup, A., et al.: Pharmacol. Toxicol., 67, 340 (1990), El-Kadi, A., et al.: Drug Metab. Dispos., 28, 1112 (2000), Kim, S., et al.: J. Med. Chem., 45, 2131 ( 2002), Hansel, T., et al.: Drugs Today, 40, 55 (2004),<br></p>

<p>Applications 1,10-Decanedioic-d16 Acid (CAS# 73351-71-0) is a useful isotopically labelled compound for studying saturated fatty acids.<br>References Yamada, T., et al.: Adv. Synth. Catal., 358, 3277 (2016)<br></p>

<p>Applications Labelled 2,3-Butanedione (B690030). 2,3-Butanedione (Diacetyl), the molecule implicated in the disease known as popcorn lung, has now been implicated in amyloid-β peptide toxicity associated with Alzheimer’s disease. Diacetyl accelerates amyloid-β aggregation-a hallmark of Alzheimer’s disease. These preliminary finding raise the possibility of long-term neurological toxicity mediated by DA.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Wang, J., et al.: Exp. Neurol., 158, 328 (1999); Brown, M., et al.: Cell, 100, 391 (2000); Heinitz, K., et al.: J. Neurochem., 98, 1930 (2006); Brody, D., et al.: Science, 321, 1221 (2008); More, S., et al.: J. Med. Chem., 52, 4650 (2009);<br></p>

<p>Applications A labelled isomer of dichloropropanol; shows metabolite toxicity.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Omura, M., et al.: Bull. Environ. Contam. Toxicol., 55, 1 (1995),<br></p>

<p>Applications Isotope labelled 1,3-Dibromopropane is a substrate specificity of haloalkane dehalogenases.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Koudelakova, T., et al.: Biochem. J., 435, 345 (2011),<br></p>

<p>Applications Nonanal-d18, is the labeled analogue of Nonanal (N649330), a component of essential oils. Nonanal possesses a strong fruity odor. Essential oils have varying effects from antibacterial activity to hypolipidemic activity.<br>References Zorrilla-Fontanesi, Yet al.: Plant. Phys., 159, 851 (2012): Taherkhani, M. et al.: Asian. J. Chem., 24, 1461 (2012); Ahmadvand, H. et al.: Iran. J. Pharm. Res., 11, 1219 (2012);<br></p>

<p>Applications N-Desmethyl Regorafenib (Pyridine)-N-oxide-d3 is the isotope labelled analog of N-Desmethyl Regorafenib (Pyridine)-N-oxide (D293280); a synthetic metabolite of Regorafenib (R143000) used for treatment and prevention of cancer.<br>References Wilhelm, S.: PCT Int. Appl. WO 2011130728 A1 20111020. Oct 20, 2011<br></p>

<p>Stability Hygroscopic<br>Applications N-Acetylneuraminic Acid-13C,d3 is a labelled Neuraminic Acid derivative.<br>References Oetke, C., et al.: J. Biol. Chem., 277, 6688 (2002)<br></p>

<p>Applications 2,7-Diisopropyl-9,9-dimethyl-9,10-dihydroacridine-d6 (Major) is a labeled analogue of 2,7-Diisopropyl-9,9-dimethyl-9,10-dihydroacridine (D455760), a useful chemical reagent. Also, it is derived from 9,9-Dimethyl-9,10-dihydroacridine (D474300), which are currently being used in the development of thermally activated delayed fluorescence (TADF) molecules which are being researched for their possible efficient deep-​blue TADF emitting potential.<br>References Kwon, D.Y., et al.: J. Nanosci. Nanotechnol., 15, 7828-31 (2015); Wada, Y., et al.: Adv. Mater., 30 (2018).<br></p>

<p>Applications Labelled 2-acetylthioethanesulfonic acid. Mesna (M225750) impurity.<br></p>

<p>Applications Oxaloacetic Acid-13C4 is labelled form of Oxaloacetic Acid (O845030) which is a four carbon dicarboxylic acid that is an intermediate in the citric acid cycle and glucogenesis. It has been shown to inhibit succinate dehydrogenase.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Zeylemaker, W.P. et al.: Biochim. Biophys. Acta Enzymol., 132, 210 (1967); Dalla-Betta, P. et al.: Int. J. Mol. Sci., 10, 2809 (2009);<br></p>

<p>Applications 4-Bromophenol-2,3,5,6-d4 is the labelled analogue of 4-Bromophenol (B686405) which is used as a reagent in Stille reactions.<br>References Littke, A.F. et al.: J. Am. Chem. Soc., 124, 6343 (2002);<br></p>

<p>Applications Hexazinone-d6 (dimethyl-d6-amino) (CAS# 1219804-22-4) is a useful isotopically labeled research compound.<br></p>

<p>Applications N-Acetyl-S-(3-hydroxypropyl-1,1,2,2,3,3-D6)cysteine Dicyclohexylammonium Salt is labelled N-Acetyl-S-(3-hydroxypropyl)cysteine Dicyclohexylammonium Salt (A179075), which is a metabolite of halopropanes.<br>References Barnsley, E.A.: Biochem. J., 100, 362 (1966)<br></p>

<p>Applications Triethylamine (D15, 98%) (cas# 66688-79-7) is a useful research chemical.<br></p>

<p>Applications Isotope labelled 9-Bromophenanthrene (B687200), a halogenated polycyclic aromatic hydrocarbon that has been seen to have a room temperature phosphorescence that can be induced by β-cyclodextrin (β-CD) in the presence of cyclohexane; however, trace Fe(III) causes a decrease of the RTP emission.<br></p>

<p>Applications Labelled Monobutyl Phosphate (M525050). Mono and dibasic phosphate esters are anionic surfactants which have the main feature of the stability in alkaline conditions over other surfactants. They have a wide range of properties including outstanding wetting, emulsification, lubrication, coupling activity and detergency.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Ramirez, F., et al.: Tetrahedron, 35, 1581 (1979);<br></p>

<p>Applications Labelled Benzothiazole. Various benzothiazole-benzamides synthesized were evaluated for their analgesic and antidepressant activities.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Porsolt, R., et al.: Nature, 266, 730 (1977), Foster, J., et al.: Bioorg. Med. Chem., 7, 2415 (1999), Caliendo, G., et al.: Eur. J. Med. Chem., 36, 517 (2001), Rana, A., et al.: Eur. J. Med. Chem., 43, 1114 (2008),<br></p>

<p>Applications Product of smoking tobacco<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Benigni, R., et al.: Env. Mol. Mutagen., 48, 754 (2007), Shin, H., et al.: Food Chem. Toxicol., 47, 192 (2009),<br></p>

<p>Applications DL-p-Hydroxyphenyllactic Acid-d3 is the isotope labelled analog of DL-p-Hydroxyphenyllactic Acid (H953665); a reagent in the synthesis of 2-O-(4-coumaroyl)-3-(4-hydroxyphenyl)lactic acid which is an important intermediate of rosmarinic acid biosynthesis.<br>References Matsuno, M., et al.: Chem. Pharm. Bull., 49, 1644 (2001)<br></p>

<p>Applications Wittig Reagent<br></p>

<p>Stability Hygroscopic<br>Applications Labelled 1,4-Dinitrosopiperazine. N,N'-Dinitrosopiperazine (DNP) induces nasopharyngeal carcinoma (NPC) and shows organ specificity to the nasopharyneal epithelium.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Lanier, A., et al.: Cancer, 46, 2100 (1980), Waalkes, M., et al.: Carcinogenesis, 25, 133 (2004), Toth, E., et al.: Int. J. Cancer, 121, 1744 (2007),<br></p>

<p>Applications N,N-Dimethyldodecylamine-d6 is the isotope labelled analog of N,N-Dimethyldodecylamine. N,N-Dimethyldodecylamine is used as a reagent in the synthesis of epoxy quaternary ammonium salt surfactants which exhibit potential antibacterial activity.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Liu, Y., et al.: J. Disper. Sci. Technol., 35, 1460 (2014)<br></p>

<p>Applications N-Methyl-N’-nitrosopiperazine-d4 is the isotope labelled analog of N-Methyl-N’-nitrosopiperazine (M325800), which is used as a reagent in the organic synthesis of several compounds including that of (4-methoxyphenoxy)acetic and (3,4,5-trimethoxyphenoxy)acetic acid amides and hydrazides which display antimicrobial and anthelmintic properties and may act as potential neurotropic and cardiovascular agents. N-Methyl-N’-nitrosopiperazine also diplayed strong nasal carcinogenity and genotoxicity toward nasal cells.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Valenta, V., et al.: Collect. Czech. Chem. C., 52, 3013 (1987); Klein, R., et al.: Carcinogenesis, 20, 1629 (1999);<br></p>

<p>Applications Labelled Butylparaben. An antimicrobial agent used in cosmetic products.<br>References Gilliland, D. et al.: J. Appl. Bacteriol., 72, 258 (1992); Routledge, E. et al.: Toxicol. Appl. Pharmacol., 153, 12 (1998); Miller, C. et al.: J. Biol. Chem., 272, 32824 (1997); Nakagawa, Y. et al.: Biochem. Pharmacol., 55, 1907 (1998);<br></p>

<p>Applications Labelled Diglyme. Solvent; it is used as reaction medium for Grignard and similar synthesis.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br></p>

<p>Applications 1-Amino Hydantoin Hydrochloride (A611090), a metabolite of Nitrofuran.Environmental contaminants<br>References Tribalat, L., et al.: Anal. Bioanal. Chem., 386, 2168 (2006), Chu, P., et al.: J. Agric. Food Chem., 55, 2129 (2007),<br></p>

<p>Applications Metabolite of oleic and linoleic acids.<br>References Jin, S.J., et al.: Biochem., 29, 8540 (1990).<br></p>

<p>Applications Diethyleneglycol Monoethyl-d5 Ether (CAS# 1219804-11-1) is a useful isotopically labeled research compound.<br></p>

<p>Applications Labelled ε-Aminocaproic Acid. Used in the preparatiom of esters of 6-aminohexanoic acid as antibacterial agents. EACA is reported to inhibit chymotrypsin, Factor VIIa, lysine carbo xy peptidase, plasmin, and plasminogen activator.<br>References Dolezal, P., et al.: Pharm. Res., 10, 1015 (1993), Vavrova, K., et al.: Curr. Med. Chem., 12, 2273 (2005), Holas, T., et al.: Bioorg. Med. Chem., 14, 7671 (2006),<br></p>

<p>Applications Labelled analogue of 2-Bromopropane, a short chain alkyl halide used in organic synthesis primarily as an alkylating agent for introducing the isopropyl functional groups.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Mayants, A.G. et al.: Zhur. Org. Khim., 25, 419 (1989); Miller, B. et al.: J. Org Chem., 30, 3895 (1965);<br></p>

<p>Applications Trigonelline-D3 is an intermediate used in the synthesis of Trigonelline-d3 HCl (N-methyl-d3) (T794052), which is deuterium labelled Trigonelline HCl. Trigonelline HCl has utility in developing site-specific system that delivers drugs to the brain. It has also been suggested as a potential anti-Alzheimer disease agent.<br>References Bodor, N., et al.: J. Med. Chem 26, 313 (1983); Makowska, J., et al.: J. Chromatogr. B 968, 101 (2014)<br></p>

<p>Applications N-(4-Aminobenzoyl-d4)-β-alanine is the labeled analogue of N-(4-Aminobenzoyl)-β-alanine (A593795), a metabolite of BX661A, a therapeutic agent used in the treatment of ulcerative colitis, chemotaxis and reactive oxygen species production in polymorphonuclear leukocyctes. Inhibits lipid peroxidation in large intestinal mucosa after mesenteric ischemia/reperfusion.<br>References Kimura, I. et al.: Arzneimittelforschung., 48, 1007 (1998); Kumamoto, T. et al.: Jpn. J. Pharmacol., 75, 187 (1997);<br></p>

<p>Applications Labelled N-Nitroso-N-methyl-N-dodecylamine (N529935). N-Nitroso-N-methyl-N-dodecylamine is a nitroso compound with carcinogenic potency.<br>References Singer, S., et al.: J. Med. Chem., 28, 1088 (1985), Gonzalez-Mancebo, S., et al.: Mutat. Res., 558, 45 (2004), Luan, F., et al.: Chem. Res. Toxicol., 18, 198 (2005),<br></p>

<p>Applications Labelled 2-(1-Piperazinyl)pyrimidine, the major metabolite of Tandospirone (T006430).<br>References Goa, K., et al.: Drugs, 32, 114 (1986); Lamberg, T., et al.: Clin. Pharmacol. Ther., 63, 640 (1998); Niwa, T., et al.: Biol. Pharm. Bull 28, 1711 (2005); Natsui, K., et al.: Eur. J. Drug Metab. Pharmacokinet., 32, 233 (2007);<br></p>

<p>Applications Labelled DL-Serine is used in the synthesis of novel tryptoline derivatives as IDO (indoleamine 2,3-Deoxygenase) inhibitors, for potential use in Alzheimer’s treatment.<br>References Tanaka, M. et al.: Bioorg. Med. Chem., 21, 1159 (2013);<br></p>

<p>Applications A labelled metabolite of ethanol in humans and a potential biomarker of acute alcohol intake.<br>References Jones, A., et al.: Forensic Sci. Int., 45, 217 (1990), Schmitt, G., et al.: J. Anal. Toxicol., 19, 91 (1995), Dahl, H., et al.: J. Anal. Toxicol., 26, 201 (2002), Stephanson, N., et al.: Ther. Drug Monit., 24, 645 (2002), Helander, A., et al.: Clin. Chem., 50, 936 (2004),<br></p>

<p>Applications Labelled Sodium DL Lactate used as coatings in the food industry, providing antimicrobial resistance<br>References Zhang, H. et al.: J. Food Sci., 74, M418 (2009); Jiang, Z. et al.: J. Food Sci., 76, M22 (2011);<br></p>

<p>Applications Isotope labelled Oxacillin Sodium Salt is a semi-synthetic antibiotic related to Penicillin. Antibacterial.<br>References Goldenthal, E.I., et al.: Toxicol. Appl. Pharmacol., 18, 185 (1971),<br></p>

<p>Applications tert-Butyl Alcohol-d10 is an isotopic analog of Tert-butyl Alcohol (T117540), an organic solvent. It is also used in the synthesis of proteosome inhibitors that are quite potent.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Kawamura, S. et al.: J. Med. Chem., 56, 3689 (2013); Galy, N. et al.: Tetrahedron Lett., 54, 2703 (2013)<br></p>

<p>Applications Isotope labelled O,O-Diethyl Dithiophosphate-d10 is used in the synthesis of novel phosphorothioates and phosphorodithioates as cholinesterase inhibitor.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Millard, C., et al.: J. Neurochem., 64, 1909 (1995), Nicolet, Y., et al.: J. Biol. Chem., 278, 41141 (2003), Casida, J., et al.: Chem. Res. Toxicol., 17, 983 (2004),<br></p>

<p>Applications Methyl-d3 Methanesulfonate (CAS# 91419-94-2) is a useful isotopically labeled research compound.<br></p>

<p>Applications Isotope labelled Squalane is used as an emollient and moisturizer in cosmetic applications.<br>References Allison, A.: Method, 19, 87 (1999)<br></p>

<p>Stability Hygroscopic<br>Applications Labelled rac 3-Hydroxybutyric Acid (H833020). Optically active 3-hydroxybutyric acids are key intermediates of the biosynthesis and metabolism of fatty acids and exist widely in biological systems.<br>References Freeman, J., et al.: Pediatrics, 102, 1358 (1998), Thio, L., et al.: Neurology, 54, 325 (2000), Rho, J., et al.: Epilepsia, 43, 358 (2002),<br></p>

<p>Applications Labelled Ascorbic Acid. Physiological antioxidant. Coenzyme for a number of hydroxylation reactions; required for collagen synthesis. Widely distributed in plants and animals. Inadequate intake results in deficiency syndromes such as scurvy. Used as antimicrobial and antioxidant in foodstuffs.<br>References Al-Meshal, I.A., et al.: Anal. Profiles Drug Subs., 11, 45 (1982), Levine, M., et al.: N. Engl. J. Med., 314, 892 (1986), Prust, C., et al.: Nature Biotech., 23, 195 (2005),<br></p>

<p>Applications Valeric Acid-d9 is the isotope labelled analog of Valeric Acid which is used in biological studies of (D)-β-hydroxybutyrate which inhibits adipocyte lipolysis via the nicotinic acid receptor PUMA-G.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Taggart, A.K.P., et al.: J. Bio. Chem., 280, 26649 (2005);<br></p>

<p>Applications Phenylglyoxylic Acid-d5 (cas# 1217089-53-6) is a compound useful in organic synthesis.<br></p>

<p>Applications Labelled Fenhexamid (F247650). Hydroxyanilide fungicide.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Yamashita, M., et al.: J. Phys. Chem., 88, 4451 (1984), Kende, A., et al.: Microchem. J., 84, 63 (2006),<br></p>

<p>Applications 2,4-Diaminotoluene (D416780). Aromatic amines likely to have high carcinogenic potency. QSARs of aromatic amines.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Franke, R., et al.: Carcinogenesis, 22, 1561 (2001), Benigni, R., et al.: Chem. Rev., 105, 1767 (2005), Benigni, R., et al.: Environ. Mol. Mutagen., 50, 152 (2009),<br></p>

<p>Applications A labelled ethylene oxide-DNA adduct. Ethylene oxide (EtO) is classified as a known human carcinogen. The formation of EtO-DNA adducts is considered as an important early event in the EtO carcinogenic process.<br>References Walker, V., et al.: Cancer Res., 52, 4320 (1992), Wu, K., et al.: Chem. Res. Toxicol., 12, 722 (1999), van Sittert, N., et al.: Mutat. Res., 447, 27 (2000),<br></p>

<p>Stability Hygroscopic, Moisture Sensitive<br>Applications Labelled Acetic Acid is used for analysis and profiling of biological samples resolved through NMR spectroscopy. It helps with the labelling of RNA for high resolution NMR.<br>References Cahoreau, E. et al.: Anal. Bio., 427, 158 (2012);<br></p>

<p>Applications Labelled Coumarin (C755380). Pharmaceutic aid (flavor). Found in tonka beans, levender oil, woodruff, sweet clover.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Hazleton, L., et al.: J. Pharmacol. Exp. Ther., 118, 348 (1956), Lake, B., et al.: Food Chem. Toxicol., 37, 423 (1999), Frerot, E., et al.: Flavour Fragrance J., 17, 218 (2002), Yang, Z., et al.: Food Chem., 114, 289 (2009),<br></p>

<p>Applications An important isooptically labelled metabolite of benzene.<br>References Muller, G., et al. : Anal. Hazard. Sust. Biol. Mater., 5, 143 (1997)<br></p>

<p>Applications Labelled Folpet (F402000). Agricultural fungicide.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Cohen, S., et al.: Crit. Rev. Toxicol., 40, 531 (2010), Wong, J., et al.: J. Agric. Food Chem., 58, 5884 (2010),<br></p>

<p>Applications The labelled analogue of a versatile ethylenediamine derivative used as an intermediate in the organic synthesis of neurochemicals, antitumor agents and other pharmaceutical compounds.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Squires, R.F. et al.: Neurochem. Res., 18, 787 (1993); Murdock, K.C. et al.: J. Med. Chem., 22, 1024 (1974);<br></p>

<p>Applications Bromoacetic Acid-d3 (CAS# 14341-48-1) is a useful isotopically labeled research compound.<br></p>

<p>Applications Suvorexant-d6 is the labeled analog of Suvorexant (S870000), a dual (non-selective) orexin receptor antagonist in development by Merck &amp; Co. for the treatment of insomnia. It works by turning off wakefulness rather than by inducing sleep. Users of higher doses had an increased rate of suicidal ideation.<br>References Cox, C., et al.: J. Med. Chem., 53, 5320 (2010); Baxter, C., et al.: Org. Process Res. Dev., 15, 367 (2011); Winrow, C., et al.: J. Neurogenet., 25, 52 (2011); Mieda, M., et al.: CNS Drugs, 27, 83 (2013); Osborne, R.: Nat. Rev. Drug Discov., 12, 492 (2013)<br></p>

<p>Applications Labelled Nicotinic acid. It is a precursor of the coenzymes NAD and NADP. Widely distributed in nature; appreciable amounts are found in liver , fish, yeast and cereal grains. Dietary deficiency is associated with pellagra. The term “niacin” has also been applied to nicotinamide or to other derivatives exhibiting the biological activity of nicotinic acid. Vitamin (enzyme cofactor).<br>References Darby, W.J., et al.: Nutr. Rev., 33, 289 (1975), Black, A., et al.: Eur. J. Clin. Nutr., 54, 395 (2000), Cole, T., et al.: Br. Med. J., 320, 1240 (2000), Forshee, R., et al.: J. Nutr., 134, 2733 (2004),<br></p>

<p>Applications Labelled analogue of Potassium Cyanide, a reagent widely used in organic synthesis for the preparation of nitriles and carboxylic acids, particularly in the von Richter reaction.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Kollenz, G. et al.: Org. Prep. Proc. Int., 12, 244 (1980); Subramanian, L. R.: Sci. Synth., 19, 173 (2004);<br></p>

<p>Applications n-Dotriacontane-d66 (CAS# 62369-68-0) is a useful isotopically labelled research compound. It has been studied as a potential generator to supply charged particles to plastic nuclear track detectors for high-energy neutrons.<br>References Oda, K., et al.: Radiation Measurements, 36, 119 (2003)<br></p>

<p>Applications Labelled Cortisol (H714615). Cortisol, or Hydrocortisone, is a steroid hormone, more specifically a glucocorticoid, produced by the zona fasciculata of the adrenal gland. Cortisol is released in response to stress and a low level of blood glucocorticoids. Its primary functions are to increase blood sugar through gluconeogenesis; suppress the immune system; and aid in fat, protein and carbohydrate metabolism.<br>References Hechter, O., et al.: Arch. Biochem. Biophys., 25, 457 (1950), Colingsworth, D.R., et al.: J. Biol. Chem., 203, 807 (1953), Florey, K., et al.: Anal. Profiles Drug Subs., 12, 277 (1983),<br></p>

<p>Applications 4-Aminophenol-15N is an intermediate in the synthesis of Acetaminophen-13C2,15N (A161228), a labelled analgesic and antipyretic agent used as a pain reliever to treat headache, muscle aches, and arthritis.<br></p>

<p>Applications A labelled metabolite of Catecholamines.<br>References Kopin, I.J., et al.: J. Biol. Chem., 236, 2109 (1961), Short, F.W., et al.: J. Med. Pharm. Chem., 5, 642 (1962)<br></p>

<p>Stability Hygroscopic<br>Applications A metabolite of Bufuralol, a β-Adrenergic blocker with peripheral vasodilating activity.<br>References Boobis, A.R., et al.: Biochem. Pharmacol., 34, 65 (1985), Yamazaki, H., et al.: Mol. Pharmacol., 46, 568 (1994), Mast, N., et al.: Biochem., 42, 14284 (2003),<br></p>

<p>Applications Fumaric Acid-d2 is the isotope labelled analog of Fumaric Acid. Fumaric acid is a compound that occurs in many plants. It is essential to vegetable and tissue respiration and also used as an antioxidant. Fumaric acid is also a metabolite of Dimethyl Fumarate (D464965), a compound used as a treatment for the relapsing forms of multiple sclerosis and psoriasis.<br>References Jelitto, T., et al.: Planta, 188, 238 (1992); Schimrigk, S., et al.: Eur. J. Neurol., 13, 604 (2006); Son, H., et al.: J. Agric. Food Chem., 56, 8007 (2008);<br></p>

<p>Stability Very Hygroscopic<br>Applications rac Tenofovir-d6 Diphosphate Triethylamine Salt is an isotopic analog of Tenofovir Diphosphate Triethylamine Salt (T018525), which is a metabolite of Tenofovir (T018500).<br>References Hazra, R., et al.: Antimicrob. Agents Chemother., 48, 124 (2004), Piketty, C., et al.: Antivir. Ther., 11, 213 (2006), Molto, J., et al.: Ther. Drug Monit., 29, 648 (2007),<br></p>

<p>Stability Volatile<br>Applications 1,2-Dichloroethane-D4 is a labelled analogue of 1,2-Dichloroethane (D434325). 1,2-Dichloroethane is one of the major waste products of the Vinyl Chloride industries, and has also been classified as a potential human carcinogen.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Hung, W., et al.: Appl. Surf. Sci., 255, 2205 (2008); Rannug, U., et al.: Chem.-Biol. Int., 20, 1 (1978)<br></p>

<p>Stability Hygroscopic<br>Applications Eprinomectin-13CD3 is an isotopic analog of Eprinomectin (E590050), a mixture of semi-synthetic Avermectins.<br>References Jones, T.K., et al.: J. Agric. Food Chem., 42, 1786 (1994), Arena, J.P., et al.: J. Parasitol., 81, 286 (1995),<br></p>

<p>Applications Isotope labelled 5-Bromopentanoic Acid used in the synthesis of inhibitors for aminoglycoside resistant bacteria. Also used in the preparation of sequence specific base pair mimics as topoisomerase IB inhibitors.<br>References Vong, K. et al.: ACS Chem. Biol., 7, 470 (2012); Vekhoff, P. et al.: Biochem., 52, 43 (2012);<br></p>

<p>Applications Choline-d13 Chloride (N,N,N-trimethyl-d9; 1,1,2,2-d4) (CAS# 352438-97-2) is a useful isotopically labeled research compound.<br></p>

<p>Applications Labelled Methylparaben (M325660). It is used as preservative in foods, beverages and cosmetics.<br>References Goodwin, M., et al.: Science, 203, 559 (1979),<br></p>

<p>Applications Fenpropathrin-d5 is labelled Fenpropathrin (F249300), a pesticide.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Lehotay, S., et al.: J. AOAC International, 88, 595 (2005); Andersen, H., et al.: Toxicol. Appl. Pharmacol., 179, 1 (2002)<br></p>

<p>Stability Hygroscopic<br>Applications Labelled O,O-Diethyl Thiophosphate (D445120). Used in the synthesis of novel phosphorothioates and phosphorodithioates as cholinesterase inhibitor.<br>References Sussman, J., et al.: Science, 253, 872 (1991), Mallender, W., et al.: J. Biol. Chem 1999, 274, 8491,<br></p>

<p>Stability Volatile<br>Applications Glyme (1,2-Dimethoxyethane) (D10, 99%) (cas# 107975-86-0) is a useful research chemical.<br></p>

<p>Applications Fenpropidin-d10 is the labeled analogue of Fenpropidin (F249470), a fungicide.<br>References Leroux, P. Walker, A.: Eur. J. Plant Path., 135, 683 (2013); Zhao, H., et. al.: Ecotox. Environ. Safe., 77, 52 (2012)<br></p>

<p>Applications 1,3-Diphenyl-d10-urea is labelled 1,3-Diphenyl-urea which is a cytokinin compound present in fruit and vegetables. It is metabolized by a moderate halophilic Marinobacter sp.<br>References Sørensen, S., et al.: FEMS Microbiol. Lett., 213, 199 (2002); Campillo, N., et al.: Talanta, 116, 376 (2013)<br></p>

<p>Applications Strobilurin fungicide; inhibits mitochondrial respiration by blocking electron transfer between cytochromes b and c1. Agricultural fungicide. Used in Pesticide detection.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Smalling, K., et al.: Environ. Toxicol. Chem., 29, 2593 (2010), Lu, X., et al.: Phytopathol., 100, 1162 (2010), Schafer, R., et al.: Environ. Sci. Technol., 45, 1665 (2011),<br></p>

<p>Applications N-Methyl-N-nitroso Urea-d6 is the labelled form of N-Methyl-N-nitroso Urea (M325815), which is a precursor of Diazomethane. It has a cytotoxicity effect.<br>References Huggins, C., et al.: J. Exp. Med., 131, 321 (1970); Gullino, P.M., et al.: J. Natl. Cancer Inst., 54, 401 (1975)<br></p>

<p>Sex pheromone inhibitor IPD1 is an antibody that inhibits the production of sex pheromones by Streptococcus faecalis. It is used to diagnose and treat allergic diseases, such as atopic dermatitis or bronchial asthma. This antibody binds to a protein called polypide, which is involved in the synthesis of sex pheromones, and inhibits its activity. It has been shown to inhibit the production of sex pheromones by Streptococcus faecalis when analyzed using an SDS-polyacrylamide gel electrophoresis method. Sex pheromone inhibitor IPD1 also binds to antibodies against streptococcus, acari, and other bacteria.</p>

6-Fluorovitamin D3 is a synthetic analog of vitamin D3, which is a modified form of the naturally occurring hormone known as cholecalciferol. This molecule is typically derived through chemical synthesis, incorporating a fluorine atom at a specific position on the vitamin D3 structure. The introduction of the fluorine atom is designed to enhance the stability of the compound and potentially alter its biological activity.

Tolterodine-D14 is a postoperative drug that belongs to the class of non-selective muscarinic receptor antagonists. It has been evaluated for pharmacokinetic properties in plasma samples from patients undergoing surgery. Tolterodine-D14 undergoes extensive hepatic metabolism, with only about 50% of the drug being excreted unchanged in urine. The elimination half-life of this drug ranges from 2 to 3 hours. Tolterodine-D14 has been shown to be bioequivalent to the reference drug (tolterodine) and can be used as a control level for chromatographic analyses.

L-Proline-13C5 is a high quality, reagent grade, complex compound that is useful as an intermediate for the synthesis of fine chemicals. It has CAS No. 201740-83-2 and can be used in a variety of chemical reactions to produce useful scaffolds or building blocks. L-Proline-13C5 is also a versatile building block that can be used in research or pharmaceutical applications. It is a speciality chemical that has many uses including reaction components for the synthesis of other compounds.

Albendazole-sulphone-D3 is an analyte that is extracted from a dispersive sulphoxide. It is extracted by an acetonitrile phase extraction and analyzed by liquid chromatography. Albendazole-sulphone-D3 has been shown to have anthelmintic properties, which are due to its ability to inhibit the synthesis of folic acid in nematodes. This drug binds to the acetylcholine receptor site on the worm's neuromuscular junction, preventing acetylcholine from accessing this site and causing paralysis. It has also been shown to be effective against roundworms (Ascaris lumbricoides), hookworms (Ancylostoma duodenale), and whipworms (Trichuris trichiura).

<p>25-Hydroxyvitamin D3 monohydrate is a vitamin D analog that has been shown to reduce elevated levels of parathyroid hormone and improve bone mineral density. It is used for the treatment of chronic kidney disease, hyperparathyroidism, and osteoporosis. 25-Hydroxyvitamin D3 monohydrate has been found to be effective in the treatment of these conditions because it increases the body's production of calcitriol, the active form of vitamin D. Calcitriol promotes calcium absorption in the gut and reduces renal excretion of calcium by inhibiting parathyroid hormone synthesis. This drug also inhibits pro-inflammatory cytokines such as IL-1β, IL-6, and TNF-α.</p>

22-Fluorovitamin D3 is a synthetic analog of vitamin D3, which is derived from chemical synthesis involving fluorination at the C-22 position. This modification results in a compound that mimics the structure and activity of naturally occurring vitamin D3 but with altered pharmacokinetics and metabolic stability. The fluorine atom, due to its size and electronegativity, influences the binding affinity and activity of the compound at vitamin D receptors.